/*******************************************************************************
 * Copyright 2017 Bstek
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License.  You may obtain a copy
 * of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 ******************************************************************************/
package com.bstek.ureport.expression.model.expr.ifelse;

import java.util.List;

import com.bstek.ureport.build.Context;
import com.bstek.ureport.expression.model.condition.Join;
import com.bstek.ureport.model.Cell;

/**
 * @author Jacky.gao
 * @since 2017年1月16日
 */
public class ExpressionConditionList {

	private List<ExpressionCondition> conditions;

	private List<Join> joins;

	public ExpressionConditionList(List<ExpressionCondition> conditions, List<Join> joins) {
		this.conditions = conditions;
		this.joins = joins;
	}

	public boolean eval(Context context, Cell cell, Cell currentCell) {
		if (conditions.size() == 1) {
			return conditions.get(0).eval(context, cell, currentCell);
		}
		for (int i = 0; i < conditions.size(); i++) {
			ExpressionCondition condition = conditions.get(i);
			boolean result = condition.eval(context, cell, currentCell);
			Join join = null;
			if (i < joins.size()) {
				join = joins.get(i);
			}
			if (join == null) {
				return result;
			} else {
				if (join.equals(Join.and) && !result) {
					return false;
				}
				if (join.equals(Join.or) && result) {
					return true;
				}
			}
		}
		return true;
	}

	public List<ExpressionCondition> getConditions() {
		return conditions;
	}

	public void fetchCellName(List<String> list) {
		if (conditions == null && conditions.size() == 0) {
			return;
		}
		for (ExpressionCondition expressionCondition : conditions) {
			expressionCondition.fetchCellName(list);
		}
	}
}
